NHTSA ID Number: 11029552
Manufacturer Communication Number: TSB 26-2059
TSB/Document Date: 2026-03-04
Summary
This bulletin supersedes TSB 25-2423. Reason For Update: Replace the incorrect acronym SOWC with the correct acronym OWC. Some of the vehicles listed in the Model statement above may exhibit at least one of the following conditions: - No upshift past second gear - Unable to achieve third gear ratio - Illuminated malfunction indicator lamp (MIL) with DTCs P0757 and P2701 This may be due to a damaged one-way clutch (OWC).
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TSB/Document ID: TSB 26-2059
Replacement Service Bulletin Number:
MFR Communication Date: 2026-02-26
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: POWER TRAIN
MFR Component System:
MFR Component Subsystem:
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TECHNICAL SERVICE BULLETIN
26-2059
No Upshift Past Second Gear, Unable To Achieve Third Gear Ratio, And/Or 26 February
2026
Illuminated MIL With DTCs P0757 And P2701
This bulletin supersedes 25-2423. Reason for update: update the acronym tag SOWC with one-way clutch
Model:
Ford
2024-2025 Expedition
Transmission: 10R80
2024-2025 Explorer
Transmission: 10R80/10R80 MHT
2024-2025 F-150
Transmission: 10R80/10R80 MHT
2024-2025 F-Super Duty
Transmission: 10R100
2024-2025 Mustang
Transmission: 10R80
2024-2025 Transit
Transmission: 10R80
Lincoln
2024-2025 Navigator
Transmission: 10R80
Markets: North American markets only
Issue: Some of the vehicles listed in the Model statement above may exhibit at least one of the following conditions:
• No upshift past second gear
• Unable to achieve third gear ratio
• Illuminated MIL with DTCs P0757 and P2701
This may be due to a damaged one-way clutch.
Action: For vehicles that meet all of the criteria in the Issue and Model statements, follow the Service Procedure to
perform the one-way clutch directional test and replace the front support assembly (7A130) if necessary.
Parts - Front Support Replacement
Service Part Number Claim Quantity Description
BL8Z-7G199-A
2
Hybrid Drive Unit Feed Tube Seals (10R80 MHT)
HL3Z-7G091-F
5
Input Shaft Teflon Seals (F2)
HL3Z-7G199-A
1
Transmission Fluid Auxiliary Pump Tube Seal (10R80 If Equipped)
JL3Z-7A130-B
1
Front Support Assembly (10R80)
L1MZ-7A130-B
1
Front Support Assembly (10R80 MHT)
L1MZ-7J135-A
1
Transmission Fluid Auxiliary Pump Tube Seal (10R80 MHT)
LC3Z-7H223-AA
12
Front Support Assembly Bolt Washer Seals (10R80)
Parts - Front Support Replacement - Parts To Inspect And Replace Only If Necessary
Service Part
Number
Claim Quantity
Description
7T4Z-7Z302-A
Only If Necessary (1
Possible)
Transmission Fluid Filter Seal
HL3Z-7A098-A
Only If Necessary (1
Possible)
Transmission Fluid Filter (10R80)
HL3Z-7A191-B
Only If Necessary (1
Possible)
Transmission Fluid Pan Gasket (10R80)
HL3Z-7J227-A
Only If Necessary (1
Possible)
Transmission Fluid Auxiliary Pump Tube O-Ring (10R80 If
Equipped)
L1MZ-7A098-B
Only If Necessary (1
Possible)
Transmission Fluid Filter (10R80 MHT)
L1MZ-7F396-A
Only If Necessary (1
Possible)
Transmission Fluid Pan Gasket (10R80 MHT)
ML3Z-7A191-A
Only If Necessary (1
Possible)
Hybrid Drive Unit Gasket (10R80 MHT)
Parts - Front Support Replacement - Select One Of The Following If Needed
Service Part Number Claim Quantity Description
HL3Z-7A527-K
1
T-3 Shim 3.5-3.6 mm Selective
HL3Z-7A527-L
1
T-3 Shim 3.65-3.75 mm Selective
HL3Z-7A527-M
1
T-3 Shim 3.8-3.9 mm Selective
HL3Z-7A527-N
1
T-3 Shim 4.25-4.35 mm Selective
HL3Z-7A527-P
1
T-3 Shim 3.2-3.3 mm Selective
HL3Z-7A527-Q
1
T-3 Shim 3.05-3.15 mm Selective
HL3Z-7A527-R
1
T-3 Shim 3.35-3.45 mm Selective
HL3Z-7A527-S
1
T-3 Shim 3.95-4.05 mm Selective
HL3Z-7A527-T
1
T-3 Shim 4.1-4.2 mm Selective
HL3Z-7B066-AA
1
A Clutch Apply Plate 4.1-4.3 mm Selective
HL3Z-7B066-Z
1
A Clutch Apply Plate 4.4-4.6 mm Selective
HL3Z-7B066-Y
1
A Clutch Apply Plate 4.7-4.9 mm Selective
HL3Z-7B066-X
1
A Clutch Apply Plate 5.0-5.2 mm Selective
HL3Z-7B066-W
1
A Clutch Apply Plate 5.3-5.5 mm Selective
Parts - F-150 Transmission Removal And Installation
Service Part
Number
Claim Quantity
Description
7L1Z-4B496-C
2
CV Joint-To-Pinion Flange Cup Bolts & Retaining
Straps (4WD)
HL3Z-5G221B
1
Left Stick On Bellhousing Heat Shield (3.5L Oil
To Air Cooler)
HL3Z-5G221C
1
Right Stick On Bellhousing Heat Shield (3.5L Oil
To Air Cooler)
JL1Z-7N134-A
1
Park Override Lever Bolt (If Equipped)
PL3Z-5C226-A
10R80 MHT Require 1 Piece, 10R80 3.5L
Automatic Transmission Warming Unit Require Catalytic Converter Gasket
2 Pieces
ML3Z-6775-K
1
Self-Adhesive Heat Shield
N800594-S100
4 Or 8 Pieces (Flange Dependent)
RL3Z-6L612-B
1
Left Exhaust Manifold Gasket (10R80 MHT)
W500120S439
4
Transmission Support Insulator Bolts (RWD
10R80 MHT)
Driveshaft Flange To Flange Bolts (8 pieces For
4 Bolt Style Transmission Yoke)
W520113S440
4
W520114S442
4
W520514S440
2.7L Require 2 Pieces, 3.5L/5.0L Require 4
Pieces
W705443S900
4
W707753S900
4
W709771S440
2
W711140S901
3
W714418S439
4
W714717S439
2
W715579S439
2
W715618S437
4
W715798S442
1
W716375S900
Stabilizer Bar Bracket Nuts
Transmission Support Crossmember Nuts
Left Catalytic Converter Nuts
Catalytic Converter Nuts
Exhaust Studs
Transmission Mount Nuts
Transmission Support Insulator Bolts (RWD)
Transmission Support Crossmember Bolts
Muffler Inlet Pipe Bolts (5.2L/10R80 MHT)
Driveshaft Center Bearing Bolt (If Equipped With
Two Piece Driveshaft)
Torque Converter Nuts
Transmission Fluid Cooler Tube Bracket Studbolt
(5.2L/3.5L Oil To Air Cooler)
10R80 Require 9 Pieces, 10R80 MHT Require
Transfer Case & Vibration Damper Bolts (4WD)
12 Pieces
W718353S900
4
W718396S439
4
W718926S900
4
W722614S900
2
CVC-13DL-G
As Needed
Motorcraft® Yellow Prediluted Antifreeze/Coolant
(Canada Only)
VC-13DL-G
As Needed
Motorcraft® Yellow Prediluted Antifreeze/Coolant
(All Markets Except Canada)
CXT-10-LV6
As Needed
Motorcraft® MERCON® LV Automatic
Transmission Fluid (4WD)(Canada Only)
As Needed
Motorcraft® MERCON® LV Automatic
Transmission Fluid (4WD) (All Markets Except
Canada)
XT-12-QULV
As Needed
Motorcraft® MERCON® ULV Automatic
Transmission Fluid
TA-24-B
As Needed
Motorcraft® Thread Sealant With PTFE (4WD)
XG-1-E1
As Needed
Motorcraft® Premium Long-Life Grease
XL-5-A
As Needed
Motorcraft® Multi-Purpose Grease Spray
Transmission Support Insulator Bolts (4WD)
Skid Plate Nuts
Transmission Support Insulator Bolts (4WD
10R80 MHT)
Right Catalytic Converter Bolts (2.7L)
Parts - F-150 Transmission Removal And Installation - Parts To Inspect And Replace Only If Necessary
Service Part
Number
Claim Quantity
Description
5L7Z-7D285-A
Only If Necessary (2
Possible)
Fluid Tube Seals (5.2L/3.5L Oil To Air Cooler)
5L7Z-7J324-A
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